BELGIUM
Known mine explosion6 January 2011
- Magnitude
- 1.5ML
- Depth
- 1.0km
- Belgian time
- 07:56:482011-01-06
- UTC
- 06:56:482011-01-06
Main parameters
| Date and time | 2011-01-06 06:56:48 UTC 2011-01-06 07:56:48 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.555° N, 4.925° E Uncertainty ± 6.5 km |
| Depth of hypocenter | 1.0 km |
| Event ID | ROB 4056 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2011-01-06 08:51:43 Belgian time
Location map
- Epicentre
- Station that recorded the event
Arrival times at the stations
Each station first records the P wave, the fastest, then the S wave. The farther a station is from the epicentre, the later the waves reach it and the wider the gap between the two.
- Stations
- 6
- Epicentral distance
- 22.1 – 77.0km
- Mean velocity, P wave
- 6.3km/s
- P wave
- S wave
- Curve fitted to the measurements
Notes and method
Curves: travel time of a direct wave in a homogeneous medium. The velocity of each wave and an origin-time shift, common to both, are fitted to the measurements by least squares. Hypocenter at a depth of 1.0 km. P wave: 6 measurements, root-mean-square deviation 0.36 s.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)6 stations | |||||
| GESGesves | 22.1 | 149 | 06:56:52.83+4.12 s | – | – |
| MRDMaredsous | 30.2 | 202 | 06:56:54.76+6.05 s | – | – |
| CLAClavier | 30.7 | 119 | 06:56:54.87+6.16 s | – | – |
| RQRRonquières | 49.9 | 277 | 06:56:57.60+8.89 s | – | – |
| DOUH1Dourbes | 56.3 | 205 | 06:56:59.31+10.60 s | – | – |
| MEMH1Membach | 77.0 | 85 | 06:57:01.68+12.97 s | – | – |
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